Dental suction-plate.



G. RAUHE.

DENTAL SUCTION PLATE.

APPLICATION FILED OCT. 25, 1910. v

Pdtented 001. 24, 1911.

Wfnesmy CARL RAUHE, OF DUSSELIDORF, GERMANY.

DENTAL SUCTION-PLATE.

Specification of Letters Patent.

Patented Oct. 24:, 1911.

Application filed October 25, 1910. Serial No. 588,993.

To all whom it may concern:

Be it known that I, CARL RAUHE, a citizen of the German Empire, residing at Dusseldorf, Germany, have invented new and useful Improvements in Dental Suction- Plates, of which the following is a specification.

My invention relates to a new and useful improvement in suction devices employed with sets of artificial teeth and has for its object an interchangeable suction disk or ring, the projecting suction edges of the same conforming truly to the undulated shape of the palate.

In describing my invention in detail reference will be had to the accompanying drawing, forming part of this specification and wherein like characters denote corresponding parts in the two views, in which- Figure 1 is a transverse section of an artificial denture provided with a suction disk, according to my invention, Fig. 2 is a perspective view thereof.

Referring to the drawing a designates an artificial denture or plate with a recess 3) for the reception of a soft rubber disk 0. The recess 5 having centrally an elevation d forming part of or separately attached to the plate a to receive the hole of the disk or ring a and the elevation cl being covered by a metal plate 6 thereby securing the disk 0 to the denture-plate a.

The suction-devices employed with the plates of artificial teeth often consist of one or several suction disks which are placed into a so called suction-chamber on top of the tooth-plate and held in a more or less cup-like shape in order to affect the suc tion action favorably. While the surface of the denture-plate, and consequently also the edge of the suction-chamber is naturally conformable to the shape of the palate, the projecting edge of the inserted disk is situated more or less in a plane. In consequence thereof it is difiicult for this edge to come into contact in a good manner everywhere along the very uneven undulated surface of the palate. The present invention is intended to insure a close fit of the suction-disk.

The present invention relates to a plate for artificial teeth in which the interchangeable suction disk or the suction edge of the same corresponds exactly to the undulated shape of the surface of the palate, so that on inserting the plate the suction disk must rest uniformly everywhere on the surface of the palate. Such an improved suction device I obtain by laying, as shown in the drawing, on top of an elevation d in the center of the suction chamber 6 a thin plate 6 of metal or any suitable material and of somewhat smaller diameter than the suction disk 0 and truly corresponding to the undulated conformations of the palate, thereby forcing the upwardly turning edge (by outwardly rising surface of the bottom of the chamber 6 or in any other usual manner) of the suction disk 0 also to assume the shape of the plate 6 that is to say of the surface of the palate. The molding of the plate 6 can be effected in various ways, for example by casting from the plastic model, by being pressed against the same or by stamping. The fastening of the plate 6 to the tooth plate a or the elevation d of the same can also be effected in various ways, for example the plate 6 can be removably as well as fixedly connected by screws, rivets or as in the present case by vulcanizing with the tooth plate a. In any case care must be taken, that the plate 6 is placed in its exact position and is prevented from being displaced.

The plate 6 formed as above described constitutes, once it has been fitted to the denture plate a, a correct continuation of the contact surface of the latter, only that the upper surface of the plate 6 does not rest firmly against the surface of the palate, but rather (so as to allow of the suction action of the disk 0) runs parallel to the surface of the palate at a slight distance. Such an improved suction device assures a uniformly firm suction, not affecting the mucous membrane of the palate and imperceptible to the In testimony whereof I have hereunto sub- 10 wearer of the denture.

scribed my name in the presence of two wit- Having now described my invention, What nesses. I claim is: In a suction device for dental plates the CARL RAUHE. [L.S.]

combination of the rubber cup or disk with a securing plate formed with the undula- WVitnesses:

tions of the palate substantially as and for ALFRED HENKEL, the purposes set forth.

WVALTER VONNEGUT.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

